Hydraulically-operated flushing-valve mechanism



P. HAAS.

HYDRAULICALLY OPERATED FLUSHING VALVE MECHANISM.

APPLICATION FILED AUG.I9, 1919.

4 SHEETS-SHEET l.

P. HAAS.

HYDRAULICALLY OPERATED FLUSHING VALVE MECHANISM.

APPLICATION FILED AUG-19,1919.

1,33 1,706. Patented Feb. 24, 19:20. I b a 4 SHEETSSHEET 2.

'6 /6 I 7; "II-:1: viz M Liz "XL/1', I!" I6 I 6 4i m 55 A 54 2 g 27 P.HAAS. HYURAULICALLY OPERMED FLUSHING VALVE MECHANISM.

' APPLlCATlON FILED AUG.19.I9I9. 1,331,706.

Patented Feb. 2&1, 1920.

4 SHEETS-SHEET 3.

P. HAAS.

HYDRAULICALLY OPERATED- FLUSHING VALVE MECHANISM;

APPLICATION FILED AUG-19. 1919.

1,331,706. Patented Feb. 24,1920.

4 SHEETS$HEET 4.

I #r' rritrr. HAAs', r- DAYTON, OHIO- YnnAu-LIcAnLY-or'nrmmnResume-VALVEMECHANISM.

Be it known that I, PiirL'irlHAAs, citizen of the United States 'residin at'Da ton in declare the water is, avaihble making lt'possible.

without it the valve mechanism would notf as heretofore constructed. f

hydraulic ally op; has therefore been and the same is ingdescriptionandclaims. I I

Myinvention relates particularlyto hydraulically operated fli.1shingvalves for water closets inwhich theopening and closf ,tion, theproduction ofan after fil I closet bowl, and the final closing of the.flushbeing effected in proper sethe several parts of the valvemechanism detached from each other,ifor"greater clear; .nessofillustration.

' Fig. 8 is a vertical sectional view of the The object of my presenthe. county. of Montgomery and State ifof Ohio, have invented certainnew and {use Improvements in Hydraulically-Operated Flu slung-ValveMechanism; and I do hereby f following to bea full, clear, and

exact description ofthefinvention, such as will enable others itappertains to make and use-the. same;

My invention consists in the novel feaitures hereinafter described,reference'being had to the accompanying drawings, which 15.

illustrate .anembodiment of "the invention selected by inc for purposesof-illustratiomf fully disclosed in the follow ing of the flushing valvemechanism is. effected water pressure. ,This, typ'e wof valve mechanism,has

to the greatest advantage in buildings where a very high pressure andlarge volume of for flushing purposes:- to dispense with Sflush tanks,and effecting the opening and closing of the valve by the pressure ofthe water,

the opening of the valve the flushing ing valve, all

quence'by the action of the water pressure 7 Without aid or interferenceby the operator, who merely startsthe cycle of operation by )ress'ina-button or. otherwise. It has been supply pipes are of small'diameterjsuch, as

have beencommonly furnished in'the ordi- I I p I form of cap show ng adl-fl'erent means for nary private house, and where the pressure ofwater in the main is comparatively low, for the reason that the requiredvolume of water and the required pressure of this large volume of waterwasfnot available, and

buildings, and their use in private dwellings has been negligible. I, i

invention is to Specification of Letters rat-em;

provide fvalvemechanism adapted especially "lation contal vention.

g is a frontelevation of my improved. valve mechanism showing theauxiliary cut elf cockconnected therewith; heretofore been .used ,j

operacated' by the and 6.- v

' a hydra for use in private houses and other buildings in which thewatersup'ply conveyed by com- -paratively small pipes, for example, assmall as indiameter, andin which it maybe supplied] at conipar ativelylow pressure, to the, end that. the useof thisv type of valvemechafnism' may skilled in theart to which large'class of privatedwellings and to secure the accurate predetermined operation be'jextended to. the very "of the valve mechanism under all workingconditions with thesame or greater eliiciency thanis now obtained inallinstallations in 'which the larger'supply pipes and higher Ipressures'are available.

' "Inthe" accompanying drawings,

' Figure 1 i represents a water loset instal "ng. an embodiment oflmyin- Fig.3 is a central vertical section through the valve mechanism. pFig. 4 is a vertical section on the line H "of Fig. 3. I

Fig. 5 is afr'ont elevation ofthe main body of the valve mechanism, withthe front V Patented Feb. '24, 1920. AbpnEau a fi lefif Au gust 1 1 919.Serial nojsias a' r l UNITEDSTATESPATENT0FF1CE- lically foperatedflushing I cover, diaphragm, and flushing valve removed therefrom.

Fig. 6 represents a horizontal section on theiline 6- 6 ofFig. 3. Fig. 7is a detail perspective view showing valve mechanism taken 'on the planeindidotted line S g-'8 lII L'FigS. 5

Fig; 9 is a sectional View of a modified actuating the relief valve.

erably made of cast metal is provided on its? front face with a circularflange for dome shape,

4, and a vertical transverse wall or partition t he latterbe-ingprovidedwitha circular opening '6 surrounded on'the outer face of the'wall 5 bya valve seat 7; The valvev v in the drawings, .1 represents the main Ybody of the valve mechanismwhi'ch is pref 7 body is also provided withan annular in- V clined sloping flange portion 8 forming 'an' inclinedshoulder or support fortheflexible I diaphragm, hereinafter described. Acomparatively narrow chamber 9 isformd between the vertical wall?)and'the annular j'fla'nge or shoulder 8, andcommunicateS below the wall1 with aylargerchamber 10,

' wl1ich I term -the flushing'chamber, the

valve body being provided at its lowerend k withaflushingja erture.11,.of large diam- 'eter, adapted to e connected to the closet bowl.InQthis instancefI havefshown the lower end of the chamber provided.with a s in YlVithin the horizontaland vertical parti v 1310118 land '51s:formed a second chamber.

"ber, separated-from the: flushing chamber by said walls,butconinninicating therewith Fig. 1.

threaded nipple 12 for the attaclnnent of the V pipe 13,Jindicated in.Fig; 1, and leading ito theclosetb'owl 14W of any usual ordesiredconstruction.

15 which Itermtheniain water inlet cham through the opening 6 and.passage 9,"wh en the flushing valve is open. .The" valve body p .is alsoprovided with an outlet aperture,'alsor of large diameter,communicatingwith the i'vatehinlet chamber 15, and'adaptedlo be connected to a closedtank 18 showngin, 2' In some instancesthis jtank is 10-' catedin rearofthe'wall or partition adjavenience I therefore cent to which the bowlis' 'inst,alled,iwhere ill isconcealed'from view, as shown 1n F1gr l,and some instances it may be. necessaryto have the-tank supported onthe'outer tures,"as indicated at 16and 16* inthe draw- 2 ;.per face thereof,one of which is closed by a plug] as indicated at 16?, while the other.is .Qconnected by pipe 17 with the tank ,18, as shown in Fig. 1.WVithin' thehchamber 15.

. or. communicating therewith, an auxiliary water inlet, chamber 20 ofcomparatively small size, and formed inany desired man ner, inthisinstance, the inain bodyof they valve'being provided with a .boss 19extending transversely acrossthe rear portion .of the body, above thehorizontal partition 4, V vwithin which the auxiliary inlet chamber 20'vis formed, by coring'saidboss or by boring I the same: orinanyother-desired way. In .prefer to bore or. drill entirelythrough this 1boss from. one. sideof the valve casing to ,2, the other,.and tocounterbore the same at teriorly threaded to receive "the water, sup-.plypipe 70, which. may be as Small-asE" in diameter, for example, whichpliesi'all' the water for flushing purposes,

the opposite endof the aperture in the boss T hich may be cated threadedaperture 21 which'receives 'ner end with the point .sufli cientlyremoved from its inner,

.andthroughthe centralaperture formed at the inner edge of thefinclinedannular shoul- 'der 8.}

which engage the annular of the valve body, by anannular flange portion26 on the cap 1 9 being internally threaded, and closed by V 1anfladjustable plug 100, which isqprovided.

withaQnotchat its outer'end, in order that it may be operated from theoutside'of the valve body, To insure against leakage, I preferablyprovide the outer end of this threaded aperture with a closing plug 101g p The front face of the boss '19 i's'also provided with disand washer,102 as shown.

charge aperture 20 for the auxiliary water inlet chamber2'0," which isalways. 111 cominunicationwiththe main inlet chamber 15, 'andthetank'18. The plug 100 is so a1- rangedthat by: adjusting itlongitudinally of its threadedaperture, itwill throttle the extentlj, gI The'front' face of the boss '19 within the. valve body is providedwith a centrally lothe threaded inner end of a hollow transfer tube 22,preferably closed at its outer end, i and prov1ded '.with a solidextension 22 ,the' outer end of whichis threaded, the said, transferringtube communicating at its inauxiliary water chamber 20, and beingprovidedwith a laterally arrangeddischarge aperture 24 located at a endto communicate with the back pressure chamber of ffthe valve mechanism,hereinafter described, the'said tube extending concentri'cally throughthe flushing aperture .25 represents a flexiblediaphragm pref eraibl'yof rubber the marginalportions of flange portion 2 r and are held inposition 3, which is provided with an angular flange portion 27 toinclose the peripheral edges of the flange '2fof the valve body,providing 1 a'neat fi nish to the valve mechanism. The

cap orfcover 3 maybe held inposition'w-ith -respect to the main body of.the valve in anydesired ,way. In this instance I have shownit secured inposition. by retaining means engaging the outer endofthe transand isprovided with asecuring'nut 28 and washer 28?. I prefer thisconstruction, as it dispenses with the V screws. or bolts and enahl'esme to secure a perfectly smooth finish, which contributes fertube 22,which extendsthrough the cap to keeping the valve mechanism. at alltimes in a clean and sanitary condition. 1 Within fthecap or cover 3 isformed a,chamber 29" one end,,to form a recess 51, whlch is 111- whichItermthe pressurejcham ber, onewall ofwhich is formed -by the diaphragm25', andjinthis pressure chan' ber,vvate'rv is acdischarge aperture 20'to' a'greater or less use of ;'a number. of

brelieffpassage controlled byareliefvalve 38 operable fromthe outside ofthe valve mechanism by means handle.

7 cate s with 'a short tubular nipple 35 eX= and leading into the envbodycommunicating with the bowl so that when water 1n the pressurechamber may flow out into the enlarged'fiushing chamber where it willnot encounter, any back pressure against it, and thus enablingthepressure chamber .to be instantly relieved to permit. of the quick andfull opening of the flushing valve. The flushing valveproperis carriedby the d1aphragm25 and consists ofarubber ring 42 which engagesthe valveseat 7 and is preferably carried in amet'al' shell 43 engagmg the lnnerfaceof thediaphragm, and

l held in [position byja sleeve 4A, extending through apertures in the:diaphragm, shell,

-and valve, provided .with a flange on the I an easy fit, and

outer face of the diaphragm, and havin on its innerzend a threadedportion,engaged by nut 45 :and washer, for holding the valve and shellin proper position Wltll respect to the diaphragm. When the valve is inclosed position, as shown in Figs; 3, andj'6,

for example, the shell :43 extendsthrough the central aperture at thevinner ed e of the inclined shoulder 8, which Qshoul ertends to supportthediaphragm and .from imurious distortion.- -The. sleeve 44 is preventit provided with a central aperture which loosely fits around thetransfer tube .22,with

of the transfer tube is so located thatit will be uncovered'when thevalve isv in, closed position,

the pressure chamber, but will becovered i by thesleeveH when thevalveis in open position, andluntil' the valve-is within ashort distanceof] its-v closing position, therea by throttling the discharge of waterfrom the aperture 24 which ,must;pass through the annular spacebetweenthe tube 22 andsleeve 44. The annular space-between the tube 2-2 and;sleeve 44: forms a, constant communication between the inlet chamber andthe back pressure chamber, whether the 1 flushing valve is open orclosed.

Tater is supplied to the val'v e bymeans of the pipe 7 1n which I locatean, auxiliary cut off valve 71,; see Figs 1 and 2-, i1-1 orderv thatthewater supply] may be out off entirely --for the .purposeof'cleaning,adjusting or inspectlng the valvemechanislu, and also forIurtherpurposes hereinafter described. The

water "is admitted through ja pipe of small diameter, and is furtherthrottled down by of afpush button 39, or any other. form of actuatingmechanism which maybe foundj'convenient, as a'pivoted he relief, assage34 communitube 22, and through the annular space the, reliefvalve isopened, the

' greater area, than and flowing up into the tank ,"ing in-tlre tanktherein, until the air pressure, per

inch equals main supply water ceases.

the .thereby establishing V V i the pressure, chamber and the flushingdischarge aperture 11, when the accumulated pressure the tank acting onthe face of' the flushing valve,

the discharge aperture 1 24 so as to communicatedirect ly. with lthorough' flushin ;the pressure in; tieinlet chamber re- 'duced by 'theopening of the flushing valve, wateragain begins vto 'thefact that theauxiliary-inlet chamber ismade preferably of smaller diameter than thepipe itself her; The water passesgfrom the discharge aperture 20 20 intothef na in inlet eliai'nberlfi, and isagain thiz'ottled by the smallsize of the ills charge" aperture 20, of the water to pass through-thetransverse tween the' tubeQQ and sleeve 44:, into the so that thereshall beno loss 'ofpressuie wlthin the auxlliary lnlet chamthus forcinga port on,

of the auXiliarywater chamber 7 pressure chamber? 29,, no matter how lowthepressure 1n the main may be, thus filling the pressure chamber andbuildingv up a 1 pressure therein,

which acts upon the dia the diaphragm is of much the flushing valve, thesaid valv'e will be forced into closed position,

phragm 25, and as shutting ofi communication between the inlet chamber15 and the flushingdiseharge aperture 11.,-

The Avater continues to, flow into the inlet chamber 15,;filling'the'same p 18, soon as the flushingvalve is closed, and :accumulat 18,compressingjthe air the pressure of. the water pipe 70, when the inflowof V I To efiiecttheflushing opera-l tion ',-ft is only necessary-forthe operator square 1n the. f

to actuate the. relief valve 38 by meansv of,

willforce the valve to open to itsfullest extent, and'byi means of v,the large apertures 1a largevolumeof lwaterrapidly to the bowl 14for'flushin-g purposes,

16, 6, and 11,,will deliver;

umethan could be passed in the same length timeithrough the main 70,;andeffect a of the bowl. As soon as fromthe main 7 0, the incoming-waterjoin ing in the flushing action,

while a part of {the same will be transferred from the auiriliaryinlet-chamber 20 through the transfer aperture 24, and between thetube-22 and sleeve 4%, into the back-pressurechamber,

I the. relief valvej38 having in the mean time been closedby releasingthepush button or The flushing acrapidly until push button-39, or otheractuating means, j

commun cation between 1 V amuch larger vol-' flow into the valveZtube122, and seeping slowly through the checked by -thepartial closingof the (valve,

after which the valve will close more slowly,

permitting a portion the incoming; water ,or water frointhe tank totrickle through I the outlet 6 to the bowl 14, to effect what is termed.the after fill, and insuring the bowl and water seal receiving thenecessary.

amount ofwater in the flushing action, and

the closing action of the valve will continue "slowly as'the' pressurebuilds up in the presthatlthe flushing valve itself is operated entirelyby hydraulic means and thereforecam sure chamber 29, until the valve 42is almost seated, at which time the outlet aperture 24 of the transfertube'22 will be'uncovered by the sleeve 44, permitting the water to betransferred more rapidly into'the pressure chamber, to insure the finalseating of the valve. The uncovering of the outlet aperture'QL of thetransfer tube 22 beforethe valve is completely seated, effects a quickand positive final closing of the valve, and obviates the hissing noisefrequently made in the final-throttling action of avalve in clos- 'in'goff a supply of water'and also prevents thewear of the valve occasionedby the seeping of water past the same whereits final tion offlushing,and the parts return to the normal position, indicated in'the drawings,and remain'in this position until the'valve mechanism is again operated.It will be seen not'beiinjured or interfered with by the'operator, whocan only actuate the relief valve of the pressure chamber.

It will be 'seen'that by adjusting the plug p 10 0 hereinbefore,described, the discharge aperture of the auxiliary'inlet chamber 1 I l vclosing movement 1 of the valve sufiiclently 5 to allow the after filltoibe' ao complishcd' without in any way interfering Withthe 20 canbevariably throttled, thereby insur- I ing the transfer of waterthroughthe transfer tubei22 to the pressure chamber at all times, even thoughthe pressure in the main may be somewhat reduced, and n practice thisthrottling device can be so adjusted'as to further controlthe durationof the flusha ing, as obviously the greater. the extent towhich theaperture 20 is closed, Ithe'more rapidly the water will be transferredto the pressure chamber through the 'transfer'tube 22, and the more'qui'cklythe flushing valve will be Closed. It will also beseen that theadjustment of the plug 100 can be readily efie'cted'fr'om-the exteriorof the valve casing removing theclosing plug 101 without disassemblingthe valve or interfering with its operation. It is desirable that theflushing valve shall perform the first portion'of its closing movementmore or less -apidlyfand"then perform'the next portion of itsclosingrmovement sl0wly,]in order to allow 'suflicient water to'p'assslowly to the "bowl, thefiushi'ng operation, to refill the bowland waterseal, so that the valve shallbe firmly and positively givenits final.

:thewater main, the flushing valve may be "forced to its seattoorapidlygto allow the ."beer 9,:andthence'with the flushingchamber 10,This by-pass allows water entering "from the mainbefore entering the,auxil- .iary inlet chamberinwhich" it is slightly throttled, to pass tothe opening 81,[and

' setting up 'a slight I I'nsteadof-usinga push button to of theauxiliary inlet chamber 20-is throtftled by the plug 100 to the requiredextent,

to insure the proper'duration of;fiush, and the positive closing'ofthevalve under all conditions of pressure, even: though water. may beturned on at another faucet, 01" at other points in the buildingconnected with necessary time for the after "fill. lnorder to'preventthis, Ipreferto' 'provide abypass extending from the'recess 51 to anaperture 81 inithe'an'nularflange 8 beneath s0 fthe dia hragm, andextending in this instance t rough a'boss 82 and to provide in saidflange one or more openings83 (two being shown) in said flange, adjacentto the opening :81 communicating with the chaindi'scharge through d theapertures 83,- thus 7 ressure i on 'theij'diaphragm when the flus ingvalve has' nearly breached its closing position in opposition to thepressure in the'pressure chamber,- as

the diaphragm tends to"cover the aperture- 81, fthusjt'endi'ng toslightly retard the seatingof the valve, until the final accumulation ofwater jinthe'pressure chamber after the: uncovering of the aperture'24Qin' the transfertube', finally closes; the valve: and presses thediaphragm upon and 'o'ver'fthe aperture 81, closing it: also. I findthat this by pass 'is'very' efiicient in 'retardin "the positive andcertain closin'gof-the flushing valve after the discharge aperture24c'inthe transfer" tube hasbeen' uncovered as before described.-

"The apparatus herein describe dais so constructed I and designed thatit may be read 'ily installed in any dwelling and adjusted to the'pressure and volume of the available which are frequent dwelling'houseshaving' service pipes iof small diameter'and b 7 moderate pressures, anddue to: the "openingof faucets or other use" of water atother points inthe mains actuate the relief valve I .mayemploy a" lever or handlesis-indicated in Fig 9,;in which 3 'representsfia slightly modified formof cap containing tl e pressure chan'iber '29? and 7 provided with therelief'valve 38 and passage 35f to communicate with the dischargechamber 10 of the valveas. heretofore de lscribed. In Fig; 9 "I haveshowna movable,

actuating lever 39f havin a "disk-portion 1 10 atits inner endengaglng adisk 14:1,on

a part connected withthe valve-stem and held in normallyfretractedpositionbya spring 142, said part being provided with a washer 143 toprevent leakage and the parts being held in assembledposition by thesleeve nut 14A. Obviously a movement of the handle 39 in any directionwill cause the disk 140 to elevate the 'disk- 141 and open the valve.The cap 3 may belprovided with a central aperture 145 to re ceive thethreadedouter end of the transa vided with a tank aperture of relativelylarge area, a flushing discharge aperture of correspondingly large area,a flushing valve interposed between said tank aperture and flushingdischarge aperture, a pressure chamber for closing said valveand holdingit in closed position, a relief valvejforfsaid pressure chamber, saidvalve" body being .providedwlth a Waterinlet passage of relatively smallarea, andan inlet chamber. communicating therewith'and having a reduceddischarge aperture at all times incommunication with the tank aperture,and a comnumicating passage of small areaand ca,-'

paeity extending from said inlet--chainber to the pressure chamber.whereby the restricted discharge outlet for thei-nlet chams l-erinsuresat all times and under all cons ditionsot pressure, a supply of-ivatertothe pressure chamber, toeflect the 'closingof' the flushing valve, andtohold it normally ,1 provided with a water inlet passage of rela-' r bed.

2. In ahydraulically operated flushing valve the combination ofavalvebody provided with a tank aperture of relatively large area, aflushing discharge aperture of correspondingly large area, a flushingvalve 7 interposed between said tank aperture-and flushing dischargeaperture, pressure, chamber for closing said valve and holding it inclosed position, a relief valve forsaidz pressure chamber, said valvebodyubeing provided with a Water inlet passage ofrelae tively smallarea, and an inlet chamber communicating therewith and havingv a reduceddischarge aperture at all times in communication with the tank'aperture,and a communicating passage ofsmall' area and capacity extending fromsaid inlet chamber to the pressure chamber, 'Wherebythe restricteddischarge outlet for the inlet chaml a nut and ber'insures at all timesand under all con ditionsof pressure, a supply of water to the pressurechamber, toefiect'the closing of'theflushing valve, and to hold itnormally. closed, andthrottling meansifor partially: closing thedischarge aperture' of the :inlet chamber to cause the water.to'pass.'more .7 readily to the pressure chamber.-

, 3; In a hydraulically operated: flushing.

valvethe combination of a valve body provided with a" tank aperture ofrelatively large area, a flushing discharge aperture of''correspondlngly large area, a flushing valve interposed between saidtank aperture and flushing discharge aperture, a pressure chamberiorclosing said valve and holding r it in closed position, a relief valvefor said a pressure ,chamber, said valve body being 7 tively small area,and an inlet chamber comcation with the tank aperture,, andacomprovided'with a water inlet passage of relav municating passage ofsmallarea and capacity extending from, said inlet chamber to thepressure chamber, whereby the restricted dischargeoutlet for the inletchamber ina sures at "all times under-all conditions ofpressure, asupply of water to the pres sure chamber, to effect the closing of theflushing valve, and to' hold it "normally closed, and an adjustablethrottling device for partially closingito agreater or less,

' extent, the discharge aperture of the-said inlet chamber. v a

4. In a hydraulically operated flushing valve the. combination of avalvebody provided with a tank aperture of relatively {large area; aflushing discharge aperture of correspondingly large area, a flushingvalve interposed between said tank aperture and flushing dischargeaperture, a pressure chamber forclosing said valve and holding it inclosed positioma relief valve for said pressure chamber, said valve bodybeing tively'small area, and an inlet chamber com- .municating therewithandhaving a reduced discharge aperture at all times in communicatlonwith tlie'tank aperture, and a c0mmunicating passage of small area andcav pacity extending from said inlet chamber pressure 1chan1ber, toeffect the closing of the flushing valve,;and to hold it normallyclosed, and an adjustable throttling device operable from the exteriorof the valve body f partially closing to agreater or less exe tent thedischarge apertureof said inlet chamber. i

-5. In a hydraulically operated flushing valve the combination of avalve body pro vided withi-a tank" aperture of relatively large area,"aflushing discharge aperture of correspondingly la'rgearea,a flushingvalve interposed between said tank aperture'and flushing dischargeaperture, a pressure chamber-for closing saidvalve and holding it" inclosed position, a relief valve for said pressure chamber, said valvebody being providediwith awater-inlet passage of rela'-' tively smallarea, and an inlet chamber communi'cating therewith and having a reduceddischarge aperture at all times in communicationwithfthe tank aperture,and a communicating-passage of small area and, ca-

pacityextending from saidinlet chamber to" the pressure chamber, wherebythe restricteddischarge outlet for the inlet chamber insures at alltimes and under all conditions of .pressure,:aj supply of water to thepres-j sureichamber to effect the closing of the flushing valve", and tohold it normally closed, said valve body being provided with a threadedpassage extending from said discharge aperture of the inlet chamber tothe exteriorof the valve'body, and a throttling" screw located insaid'pass'age for throttling area, a flushing discharge aperture ofcor-i respondingly large area, a normally closed "flushing valveinterposed between the tank aperture and flushing discharge aperture, apressure'chamber for closing said valve and holding 'itin closedposition and a relief valve for s'aid pressure chamber, ofan inletchamber within the main body, having a dischargeaperture of small areain communication with the tank: aperture at all .times', a transfer:tubeconnected with said inlet chamber, said transfer'tube extending into thepressure chamber and being provided-with a discharge aperture communicatingtherewith, for diverting a part of the incoming water tothepressure chamber, said-valve body having a water inlet passagecommunicating only with said inlet chamber;

7 In, "a hydraulically operated flushing valve mechanism of the kinddescribed, the combination with a valve bodyprovided with-a tankaperture of relatively large area, a flushing discharge apertureofcorrespon'dinglylarge:area, a normally closed flushing ivalve interposedbetween the tank aperture and flushing dischargeaperture, a

pressure chamber for closing said valve and, holding/it in closedposition and a relief valvefor said'pressure chamber, of an inletchamber within the main body, having a discharge aperture offsmall areain communication with. the tank vaperture at all inlet chambery'saidtransfer tube extending through and having a"sliding engagement 7 "timesa tran'sfer tube connectedwith said with-an aperture in sa-id; flushing'valv'e, and 7 being providedwith a discharge aperture incommunication withjthejpressure chamber.

8,111 a hydraulically operated flushing valve mechanism of the kinddescribed, the combination with "a 'valve body provided with a tankaperture of relatively large area, a fiushingdischarge' aperture ofcorrespondinglylarge area, a normally closed flushing valve interposedbetween the tank aperture and flushing dischargeaperture, a

1pressure chamber 'for closing said'valve and oldmg it 1n closedposition, and a relief valve for saidpressure-chamber,of an inletchamber within the main body, having a discharge aperture of small "area7 in ,com-

munication with "the tank aperture at all times, a transfer 'tubeconnected with said inlet chamber, said transfer tube extending throughand having a slidingj'engagement with anapertu're in said flushingvalve, and" having alaterally disposed discharge aperture,incommunication with said pressure chamber, normally uncovered when; thesaid valve is in'closed position,-and-so located as to be coyered by thesaid valve when the latter'is in open position, to restrict the flow ofwater to-the pressure chamber.

In a hydraulically operated flushing valve-mechanism of the kinddescribed, the

combination with a valve body provided with" a tank aperture ofrelatively large area, a flushing discharge aperture of cor respondinglylarge-area, a normally closed flushing valve interposed between the tankaperture 5 and flushing discharge aperture, a

pressure chamber for closing said valve and holding 'it in closedposition and a relief valve for said pressure chamber, of an inletdischarge aperture 7 of small area-in communication with the tankaperture at all times, a transfer tube connected with said inletchamber," said transfer tube extending into the 1 pressure chamber andbeing provided with a dischargeaperture communicating therewith,for'dive'rting a part of the incoming water to 'the pressure chamber,

chamber within the main body, having a 7 said valvebodyliaving awaterinlet passage communicating only with said inlet chamber, and meansfor throttling j-the discharge aperture" of the said water inlet chamberto facilitate the passage of water through the*-transfer tube to thepressure chamber.

10. In a hydraulically operated; flushing valve'mechanism of the kinddescribed, the combination" with a valve body provided with a tankaperture of relatively large area, a flushing discharge aperture ofcorre- 'spondingly large area,'a normally closed flushing valveinterposedbetween the tank y for throttling the discharge aperture ofthe lZO aperture and flushing discharge aperture, a pressure chamber,for Closing said valveand holding it in closed position, and ajreliefvalve for said pressure chamber, of an inlet chamber within the mainbody, having a discharge aperture of small area in, communication withthe tank aperture at all times, a transfer tube extending through andhaving a sliding engagement with an aperture in said flushing valve,and'having alaterally disposed discharge aperture, in communication withsaid pressure chamber, normally uncovered when the said valve is inclosed position, andso located as to be covered by the said valve whenthe latter is in open position, to restrict the flow of water to thepressure chamber, and means said inlet chamber.

11. In a hydraulically operated flushing valve mechanism of, the kinddescribed, the

combination with a valve body provided with a tank aperture ofrelatively large area, a flushing discharge aperture of correspondinglylarge area, a normally closed flushing valve interposed between the tankaperture and flushing discharge aperture, a pressure chamber for closingsaid. valve and holdmg it m closed positlon, and a relief valve for saidpressure chamber, of an inlet chamber within the main body, having adlscharge aperture of small area in communication with the-tank apertureat all times, a transfer tube connected with said mlet chamber, saidtransfer tube extending into the pressure chamber and being pro-' videdwith a discharge aperture communieating therewith, for diverting apartof the incoming water. to the pressure chamber,

said valve body having ajwater inlet passage communicating only withsaid inlet chamber, and an adjustable device for variably throttling thedischarge aperture of the said water inlet chamber.

12.111 a hydraulically operated flush valve mechanism oithe kinddescribed, the a combination with a-valve body provided with a tankaperture of relatively large area,

a flushing discharge aperture of correspondingly large area, a normallyclosed flushing valve'interposed between the tank aperture and flushingdischarge aperture, a pressure chamber for closing said valve andholding it, in closed position, and a relief valve for said pressurechamber, of an inlet chamber within the main body, having a dischargeaperture of small area in communication with the tank aperture at alltimes, a transfer tube connected with said inletchamber, sa d transfertube extendlng througlrand having a sllding engagement with an aperturein saidflushing valve, and having a laterally disposed dischargeaperture, in communication with said pressure chamber, normallyuncovered when the said valve is is in open position, to restrict waterto the pressurechamber, and an advin closed position, and so. located asto be H said valve when the latter covered by the the flow of justabledevice for variably throttling the discharge aperture of the said'inletchamber,

13. In a hydraulically operated flushing 2 valvemechanism of the kinddescribed, the

combination with a vvalve body provided with a tank aperture, ofrelatively large area, a flushing discharge aperture of cone spondinglylarge area, a normally closed flushing valve interposed between the tankaperture and flushing discharge aperture, a ressure chamber for closingsaid valve and holdin it in closed position, and a relief valve or saidpressure chamber, of'an inlet chamber within the main body, having adischarge aperture of small area in" communicationwith, the tankaperture at all times, a transfer tube connected'with said inletchamber, said transfer tube extending into the pressure chamber andbeing provided with a discharge aperture communieating therewith, fordiverting a part of the t r incoming water tof the pressure chamber,

said valve body having a Waterinletpassage communicating only with saidinlet chamber, an ad ustable device for variably throttling thedischargeaperture of said inlet f chamber, and means permitting the adjust mentof said adjustable throttling device from the exterior of the valve bodywithout disassembling the parts of the valve mechanism or interferingwith theoperation thereof. i i y 14. In a hydraulically operatedflushing valve mechanism of the kinddescribed, the

combination with a valve body rovided with a tank aperture, of relativey large area, a flushing discharge aperture of correinlet chamber, saidtransfer tube extending.

"through and having a sliding engagement w th an aperture 111 sa dflushing valve, and

having a laterally disposed discharge aperture,,1n communication withsaid pressure l chamber, normally uncovered when the said valve is inclosed position, and so located as to be covered by the said valve whenthe latter is in open position to restrict the flow of water to thepressure, chamber, an auju s table l device for variably throttling thedischarge aperture of said inlet chamber, and means permitting theadjustment of adjustable throttling device from the exterior of thevalve body without disassembling the parts of the valve mechanism orinterfering with, the operation thereof.

15. In a hydraulically operated flushing valve mechanism the combinationwith a valve body provided with a tank aperture of relatively largearea, aflushing discharge aperture of correspondingly large area, apartition interposed between said apertures and provided with a flushingaperture of correspondingly large area, said main body having alsoapressure chamber and a flexible diaphragm forming one wall thereof, a

flushing valve carried by. said diaphragm for closing said flushingaperture, and holding the valve normally closed, and a relief valve forsaid pressure chamber, of a water inlet chamber provided with a dischare aperture of relatively small diameter, in

communication with the tank aperture, and

flushing aperture, a transfer tube extending from the" said inletchamber through an aperture in said valve into and having a dischargeaperture in communication w1th the pressure chamber, said valve bodybeing provided wit-ha water inlet passage communicating'with said inletchamber.

16. In a hydraulically operated flushing valve mechanism the combinationwith a valve body provided with a tank aperture of relatively largearea,a flushingdisoharge aperture of correspondingly large area, a partitioninterposed between said apertures and provided with a flushing apertureof correspondingly large area, said mainbody having also a pressurechamber and a flexible diaphragm forming one wall thereof, a flushingvalve carried by said diaphragm for closing said flushing aperture, andholding the valve normally closed, and a relief valvefor' said pressurechamber, of a water inlet chamber provided with a discharge aperture ofrelatively small diameter, in communication with the tank aperture andflushing aperture, a transfer tube extending from thesaid inlet chamberthrough an aperture in said valve into and having a discharge aperturein communication with the pressure chamber, said valve bodybeingprovided with a water inlet passage com- 1, s3i,7ee-

and providing with a'flushing; aperture of correspondingly largearea,said main'body having also'a pressure chamber and aflexiblediaphragm-forming one wall thereof, a flushing valve 'CaillGCl,by sa d d1aphra'gm..70 for closing said' flushing aperture, and

'relief valve for said pressur'e'chaniber, of

a water inlet chamber provided, with 'a discharge aperture 'ofrelatively small diameter, in communication with the tank aperture andflushing aperture, a transfer tube extending from the said inlet chamberthrough an aperture in said valve into and having a discharge aperturein communication with the pressure chamber, said valve body beingprovided with a waterinlet"passage communicating with" said inletchamber, said flushing valve and diaphragm being pro vided with a sleeveuniting the sanie and looselyfitting' said transfer' tube, andfsaidtransfer tube having its discharge aperture in a lateral wall, inposition to'beuncovered V by'the said sleeve when-theflushing valve isin closed position, and to be covered by said sleeve and throttled' whenthe flushing valve is in open positioni 7 18. 'Inahydraiilicallvoperated valve, the combination with"a valve body provided I with awater inlet chamber, a. tank aperture in communicationtherewith, aflushing discharge aperture, a flushingvalve interposed between saidtank aperture and flushing discharge aperture, said valve "body be ingalso provided with an annular flange portion, a diaphragm having itsmarginal portion engaging said annular flange portion and formingonewall of :a pressure chamber, said diaphragm being connected with saidflushingvalve,"acap engaging the marginal portions of said diaphragm andforming the -otl1ei-wall of the pressure chamber, and a relief valve forsaid pressure chamber, a stationary part se'cured*"to the valve body andextending through an aperture in said valve, and means engaging saidstationary '110 part for securing said capto the main body and clampingthe marginal portions of the diaphragm between said cap and the annularflange portion of the main body.

19. In a hydraulically operated valve, the

combination with a valve body providedwith a water inlet chamber, a tankaperture in communication therewith, a flushing discharge aperture, aflushing valve interposed between said tank aperture and flush 1 20 ingdischarge aperture, said valve ,body beingalso provided with ananniilarflange 7 portion, a diaphragmha'ving its marginal portionengaging" said annular flange poi-' tion and forming one wall of "a"pressure chamber, said diaphragm being connected with'saidflushingvalve, a cap engagingthe marginal portions of said diaphragm andforming the other wall of the pressure chamher, and a relief valve forsaid pressure with a discharge aperture within said pres-' sure chamber,normally uncoveredwhen the valve 1s m closed'p'ositlon, and meansengaging said transfer tube for holding said cap in operativepositio'nwith respect to the ,':ilveliorly, and t'ions of the diaphragmbetween said cap and said annularliange portion of the main body.

20; In ahydraulically operated "valve mechanismthe combination with avalve body provided with an inlet. chamber, a tank aperturecommunicating therewith, a flushing discharge aperture, a flushingvalveinterposed between said tank aperture and flushing discharge aperture, apressure chamber for closing said valve and holding it in closedposition, aiflexible diaphragm forming one wall of said pressure chamberand" ope-ratively said valvebodyhaving a flushing chamber formed thereinhaving a portion'of com: paratively small area adjacent tojthe flushingvalve, and a portionof largerqagrea adjacent to the flushing dischargeaperture, and communicating therewith, a relief passage for saidpressure chamber communicating with the portion of said flushing chamberof larger area, and a relief valve controlling said relief passage, andmeans for establishing a connection at all times,be tween the waterinlet chamber and said pressure chamber. I V

21; In a hydraulically operated flushing valve mechanism of the kinddescribed, the combination with a valve body provided with a tankaperture of relatively large area adapted to be, connected with a closedtank, I

a flushing discharge aperture of correspondingly large area, a flushingvalve interposed between the tank aperture and the flushing dischargeaperture,

in closed position, and a relief valve for said pressure chamber, her insaid valve body small discharge aperture in communica 'tionwith saidtank aperture, means for establishing a constant communication betweenthe said inlet chamber and the pressure chamber, a water supply passagecommunicating with said inlet chamber, and an auxiliary cut off valvefor the water supply passage, whereby said water supp'ly can be cut oil,and the reliefvalve opened to effect the emptying of the tank-andtherenewal or;

' the air cushion therein.

clamping the marginal porrelatively large area,

connected with saidvalve, 7

aperture of correspondinglyilarge area, a

a pressure chamber "for closing said valve and normally holding it,

of an inlet cham-' having a relatively a tank aperture 1 aperture ofcorrespondingly large area, a flushing valve interposed between'saidapertures, a pressure chamber,

diameter, in communication with said tank. I

aperture, means for establishing a communication at all tlmes betweenthe said inlet chamber and said pressure chamber to close said flushingvalve and hold it normally in closedposition, saidvalve body having aninlet passage communicating with said inlet chamber, and means fortemporarily arresting the final'closing movement of the flushing valveto insure an after fill of the bowl and water seal ofthe closet withwhich the valve mechanism is connected.

23. In-a hydraulically operated flushing valve mechanism, thecombination with av valve body provided with a tank aperture of flushingvalve interposed between said apertures, a' pressure chamber, a flexiblediaphragm forming a wall 'of' the pressure chamber andoperativelyconnected to said valve, and a relief valve for said pressurechamber, of an inlet chamber provided with adischarge aperture ofcomparatively-small diameter, in communication with said tank aperture,means for establishing a connnunication at all tlmes between the saidinlet chamber and said pressure chamber to close said flushing valveandhold it normally in closed pos1t1on, inlet passage commumcating withsaid inlet chamber, said bodybeing provided with an auxiliary apertureindependent of the pas- V,

sages for flushing water, adapted to be closed when the flushing valveis inclosed position, and a by-pass in communication with the said inletpassage and inlet chamber, and leading to said auxiliary aperture forexerting water pressure in a direction opposed to the pressure in thepressure chamber, to temporarily arrest the final closingmovement of thevalve, to insure the aftenfill of the closet bowl with which the valvemechanism is connected.

24. In a hydraulically operatedflushing valve mechanism, the combinationwith a 1 valve body provided with a tank aperture of relatively largearea, a flushing discharge aperture of correspondingly large area, aflushing valve interposed between said apertures, a pressure chamber,aflexible diaphragm forming a wall of the'pressure chamber andoperatively connected to said valve, and a relief valve for saidpressure, chamber, of an inlet chamber provided with a dischargeaperture of. comparatively small diameter, in communicaa flushingdischarge said valve body having an tion with said tank aperture, meansfor establishing a communication at times between the said inlet chamberand said pressure chamber to close said flushing valve and hold itnormally in closed position, said valve body having an inlet, passageconimunicating with said inlet chamber,- said valve body having a Waterdischar e aperture communicating with the flashing outlet, and solocated as to be closed by the diaphragm when the valve is in closedposition, and a Joy-pass comn'iunicating with saidinlet passage andinletchamber, and leading to said aperture. to exert pressure on thediaphrag'n i ina directionopposed to that eX-.

erted by the Water in the pressure chamber, to temporarily arrest thefinal closing movement of the flushing valve. I I

25. In a hydraulically operated flushing valve mechanism, a thecombination With a valve body provided with a tank aperture ofrelatively large area, a flushing-discharge {aperture ofcorresponchnglylargearea, a

flushing valve interposed between said apertiires, a pressure chamber, aflexible dill-- phr m forming a Wall; of the pressure ,cham er andoperatively connected tosa-id valve, anda relief valve for said Ie Surechamber, of an inlet chamber provi ed with 'a'discharge aperture ofcomparatively small diameter, in communication With said tank iaperture, means for establishing communicat on at all tunes betweenthesaid inlet chamber and said pressure chamber to close said flushingvalve and hold it normally in closed position, said valve body having aninlet passagecommunicating with said inlet, chamber, said valve-bodyhaving a flange" ture and comnnmicating with said inlet'pas-l sage andinlet chamber,.to temporarily arrest-the final elosingmovement of theflushlngVillVG;

In testimony whereofl aflixmy signature 7 rinnrr HA AS l/vitiiesses: i iI -L E FELDM-AN,--

M. S KULEns.

